# US 5,702,410 A · Balloon catheter with balloon protection sheath

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 5,702,410 A
- Document ID: US5702410A
- Status: Granted
- Kind: A
- Application number: 08/651,926
- Filed: 1996-05-21
- Granted: 1997-12-30
- Earliest claimed: 1995-05-22
- Assignees: Cordis Corporation
- Inventors: Rento Willem Klunder; Gerda Hendrika Maria Van Werven-Franssen
- Web page: https://patentgrep.com/patent/US5702410A

## CPC

- A61M 25/104: {used for angioplasty}
- A61M 2025/1081: {having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths}
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

The balloon catheter comprises a basic tubular body having a distal end and a proximal end. A balloon member is arranged on the distal end and, close to the balloon member, is arranged an elongate, elastic balloon protection sheath. A pull thread is connected to an end of the sheath facing toward the balloon member and extends to the proximal end of the basic tubular body. The sheath can be pulled over the balloon member by pulling the pull thread.

## Claims

### Claim 1

A catheter comprising a basic tubular body having a distal end and a proximal end, a balloon member which is arranged on the distal end, an elongate, elastic balloon protection sheath which is arranged on or in the basic tubular body close to the balloon member and at least one pull thread connected to the end of the sheath facing toward the balloon member, the at least one pull thread extending to the proximal end of the basic tubular body for being pulled to pull the sheath over the balloon member.

### Claim 2 (depends on 1)

The catheter as claimed in claim 1 wherein the balloon protection sheath is elastically stretchable in a longitudinal direction and is fixedly connected to the basic tubular body with the end of the sheath which is remote from the balloon member.

### Claim 3 (depends on 1)

The catheter as claimed in claim 1 wherein the basic tubular body has at least one lumen therein and the pull thread is guided through the lumen.

### Claim 4 (depends on 3)

The catheter as claimed in claim 3, wherein the balloon protection sheath is arranged close to the relatively proximal end of the balloon member and the pull thread first extends from the balloon protection sheath in distal direction, is then guided to the lumen through an orifice at the distal end of the basic tubular body and subsequently extends through the lumen to the proximal end of the basic tubular body.

### Claim 5 (depends on 1)

The catheter as claimed in claim 1 comprising at least two pull threads, each connected to one end of the sheath and acting in opposing directions.

### Claim 6 (depends on 1)

The catheter as claimed in claim 1 wherein the balloon protection sheath is made of woven material.

### Claim 7 (depends on 1)

The catheter as claimed in claim 1 wherein the balloon catheter has a sheath receiving space in the basic tubular body for receiving the sheath when it is not being used and pull thread means are provided for moving the sheath out of and into the space.